parentSelector does not cause DOM update

[rplotkin]

Really, the issue is that the parentSelector will not cause a DOM update if the modal is not open when the parentSelector is changed. In componentWillReceiveProps,

if (!this.props.isOpen && !isOpen) return;
var currentParent = getParentElement(this.props.parentSelector);
var newParent = getParentElement(newProps.parentSelector);

which means that, if the component is closed, newParent becomes currentParent in this cycle, and then the equality check is always true, even though the component did not get moved.

[diasbruno]

@rplotkin can you make a small example of for issue?